Pith Number

pith:CIGDR6BF

pith:2017:CIGDR6BFZMFPZMKRP2ZIPO3LWI

not attested not anchored not stored refs pending

Extending fields in a level set method by solving a biharmonic equation

D.L. Sean McElwain, Dylan R. Lusmore, Scott W. McCue, Timothy J. Moroney

arxiv:1704.08897 v1 · 2017-04-28 · math.NA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIGDR6BFZMFPZMKRP2ZIPO3LWI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:45:25.048862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

120c38f825cb0afcb1517eb287bb6bb22c4b05b8020a4d3bbd34d1c2b46ff651

Aliases

arxiv: 1704.08897 · arxiv_version: 1704.08897v1 · doi: 10.48550/arxiv.1704.08897 · pith_short_12: CIGDR6BFZMFP · pith_short_16: CIGDR6BFZMFPZMKR · pith_short_8: CIGDR6BF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CIGDR6BFZMFPZMKRP2ZIPO3LWI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 120c38f825cb0afcb1517eb287bb6bb22c4b05b8020a4d3bbd34d1c2b46ff651

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "daec3a7201bc5e24061cc876fd3438adaddcb008c0ea9e36b515c9790e9111f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-04-28T12:16:39Z",
    "title_canon_sha256": "bc7994c48fa4e6af7ebdc59518dcb345e040dafc63b69f3401da8459bd66e149"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08897",
    "kind": "arxiv",
    "version": 1
  }
}